Home / 139,830,000.19-192,931,655.41-90,259,757.87

Finding the Fourth Proportional to 139,830,000.19, 192,931,655.41 and 90,259,757.87

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Solution

The fourth proportional to 139,830,000.19, 192,931,655.41 and 90,259,757.87 is: 124,536,683.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,830,000.19 : 192,931,655.41 = 90,259,757.87 : x
  2. Step 2: Convert to fraction form
    139,830,000.19/192,931,655.41 = 90,259,757.87/x
  3. Step 3: Cross multiply
    139,830,000.19x = 192,931,655.41 × 90,259,757.87
  4. Step 4: Simplify right side
    139,830,000.19x = 17,413,964,503,795,340
  5. Step 5: Solve for x
    x = 17,413,964,503,795,340/139,830,000.19
  6. Step 6: Final answer
    x = 124,536,683.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.